Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
  • C09J133/04—Homopolymers or copolymers of esters
  • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
  • B05D5/04—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a surface receptive to ink or other liquid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
  • B41M5/52—Macromolecular coatings
  • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J7/00—Adhesives in the form of films or foils
  • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
  • C09J7/201—Adhesives in the form of films or foils characterised by their carriers characterised by the release coating composition on the carrier layer
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J7/00—Adhesives in the form of films or foils
  • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
  • C09J7/205—Adhesives in the form of films or foils characterised by their carriers characterised by the backing impregnating composition
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J7/00—Adhesives in the form of films or foils
  • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
  • C09J7/22—Plastics; Metallised plastics
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J7/00—Adhesives in the form of films or foils
  • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
  • C09J7/38—Pressure-sensitive adhesives [PSA]
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2301/00—Additional features of adhesives in the form of films or foils
  • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
  • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2401/00—Presence of cellulose
  • C09J2401/005—Presence of cellulose in the release coating
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2423/00—Presence of polyolefin
  • C09J2423/005—Presence of polyolefin in the release coating
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2423/00—Presence of polyolefin
  • C09J2423/10—Presence of homo or copolymers of propene
  • C09J2423/106—Presence of homo or copolymers of propene in the substrate
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2427/00—Presence of halogenated polymer
  • C09J2427/003—Presence of halogenated polymer in the primer coating
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2433/00—Presence of (meth)acrylic polymer
  • C09J2433/005—Presence of (meth)acrylic polymer in the release coating
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2467/00—Presence of polyester
  • C09J2467/003—Presence of polyester in the primer coating
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2467/00—Presence of polyester
  • C09J2467/006—Presence of polyester in the substrate
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J2483/00—Presence of polysiloxane
  • C09J2483/005—Presence of polysiloxane in the release coating

Definitions

• a pressure-sensitive adhesive tape containing a directly printable backsize coating is provided.
• PSA tapes While pressure-sensitive adhesive (PSA) tapes were introduced to the market more than fifty years ago, the problems associated with adhesive transfer from "faceside” to "backside” of the tape backing were not seriously addressed until the 1950's. By that time, continuous improvements in the adhesive coatings and the introduction of non-fibrous, film-type backings introduced problems associated with the ease of release without attendant loss of adhesion. These problems were addressed by the teachings found in a variety of PSA tape patents.
• CA-A-772,120 relied upon a thin ethyl acrylate/methacrylate copolymer coating to provide a printable unplasticized polyvinyl chloride-backed PSA tape;
• DE-A-2,018,929 discloses a printable and releasable backsize comprised of a blend of ethyl acrylate/methyl methacrylate and vinylidine chloride/acrylonitrile which was limited to polyvinyl chloride backings.
• US-A-3,543,920 there is disclosed a copolymer of stearyl methacrylate/acrylonitrile which is used as a compatible release material with standard film formers to provide a printable surface for paper and polyester film backings.
• US ⁇ A ⁇ 3,681,105 and 3,773,538 disclose "transfer-proof" inks for PSA tape backings which utilize surface active compounds comprised of perfluorinated alkyl groups and complexes of fatty acids with aluminum, chromium or titanium in combination with conventional flexographic ink film binders to assertedly prevent offsetting of the ink from cellophane film.
• US-A-3,967,031 discloses a printable PSA tape which uses a blend of cellulose acetate butyrate and a copolyester or acrylic ester to provide "low unwind” and printability for unplasticized polyvinyl chloride and polyester backed films.
• US-A-3,978,274 discloses a smoother unwind of a printable PSA tape by employing a ternary resin system of a vinyl film former, a hard thermoplastic acrylic resin and a polyamide plasticizing resin alleged to perform well with cellulose acetate and polyester film backings.
• GB-A-2,116,074 discloses a printable polypropylene-backed PSA-tape which is obtained by a process which involves (a) corona priming of polypropylene backing, (b) coating with a lacquer based on (1) acrylate-chloroaceto-vinyl, or (2) polyurethane or (3) polyamide; then (c) printing thereon with a flexographic ink; and finally, (d) overcoating with a release coating of polyvinyl carbamate-based release material.
• DE-A-2,900,921 discloses a coating composition for polyolefinic films, especially polypropylene films, which consists essentially of a solution of a dry three-component polymeric system comprising:
• a three-component coating composition characterised in that said composition is capable of providing a backsize coating on the backing of a pressure-sensitive adhesive tape and comprises a mixture of at least one low adhesion backsize compound, wherein said low adhesion backsize compound comprises at least 10 percent by weight of said composition and is selected from (A) an acrylate or methacrylate ester of a long-chain alkyl radical having a length of at least 12 carbon atoms, copolymerized with at least one ethylenically unsaturated monomer, and (B) a terpolymer of (1) an ethylenically unsaturated monomer containing a fluoroalkyl group of at least 6 carbon atoms, (2) an ethylenically unsaturated monomer containing a free carboxylic acid group, and (3) an ethylenically unsaturated monomer containing a functional group which forms a conjugated system with its ethylenically unsaturated
• the invention also provides a pressure-sensitive tape comprising a non-fibrous backing, a layer of normally tacky and pressure-sensitive adhesive coated over and firmly adherently bonded to the face side of said backing, provided with a coating of the above backsize composition firmly adherently bonded to the backside of said backing.
• the PSA tape of the invention is a high performance packaging and identification tape which utilizes e.g. a polypropylene, polyethylene terephthalate, or unplasticized polyvinyl chloride film backing which has been rendered “directly printable”. It has overcome the objectionable tendency to transfer printed matter from "backside” to "faceside”, which occurs with inferior tapes when they are unrolled from a dispenser and applied to the surface of an article. In this instance, the printed tape functions in a dual capacity as a packaging or holding tape as well as printed identification or instructed message.
• the film backing of the tape has two principal surfaces.
• the surface bearing the functional PSA layer is referred to as the "faceside” of the tape, while the surface bearing the printing ink, which is the LAB surface, is referred to as the "backside”.
• the highly aggressive pressure-sensitive adhesive is in direct contact with the underlying printed surface, which provides ample opportunity for the adhesive to aggressively adhere to the ink layer, resulting in offsetting of the ink when the tape is ultimately dispensed from the roll.
• the means for insuring sufficient anchorage of the printed matter to prevent this ink transfer, and the means for promoting satisfactory release of the adhesive layer from the underlying coating when the tape is in roll form are in essence diametrically opposed. Attempts to balance these opposing forces in the prior art have been accomplished by sequential coating, which involves post treatment and additional processing steps which complicate the production of such tapes and increase the expense thereof.
• the tapes have been made "directly” printable.
• This term means that the printed ink remains anchored to the tape backside while the pressure-sensitive adhesive releases from the printed surface easily without “picking” or transferring of the printed matter to the pressure-sensitive adhesive. Such is accomplished without additional post printing treatment such as heat, pressure, radiation or additional overcoating of a release-promoting layer.
• the first component thereof is a low adhesion backsize, or LAB, which is selected from a combination of a higher-alkyl acrylate or higher-alkyl methacrylate ester copolymerized with at least one ethylenically unsaturated monomer, preferably acrylic or methacrylic acid, for example as is described in US-A-2,607,711, or a terpolymer of (1) an ethylenically unsaturated monomer containing a fluoroalkyl group of at least 6 carbon atoms, (2) an ethylenically unsaturated monomer containing a free carboxylic acid group, and (3) an ethylenically unsaturated monomer containing a functional group which forms a conjugated system with its ethylenically unsaturated bond and is hydrolyzable to a free carboxy
• LAB low adhesion backsize
• higher-alkyl means a long chain alkyl radical having a length of at least 12 carbon atoms.
• copolymer and “copolymerized”, refer to molecules formed when two or more unlike monomers are polymerized together.
• the second necessary component of the backsize coating of the invention is an ink anchoring resin, which comprises a cellulose ester.
• examples thereof include cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate, such materials being commercially available and produced in grades which vary in acetyl content, butyryl content, hydroxyl content and viscosity.
• the cellulose ester must have at least about 0.5 percent by weight hydroxyl groups therein, and preferably about 1.5 percent.
• Another ink anchoring resin that is useful is cellulose nitrate, which is also commercially available.
• the third component is a primer for insuring proper adhesion of the backsize coating to the tape backing, and which is chosen in accordance with the chemical makeup of the backing utilized in the tape construction.
• the primer may be selected from a series of commercially available chlorinated polyolefins in a xylene solution, or solid chlorinated polypropylene.
• Commercially available chlorinated polyolefins comprise chlorinated polyethylene, chlorinated polypropylene, chlorinated polybutylene, and mixtures thereof.
• the primer is selected from commercially available copolyester resins.
• any backsize coating composition having one particular component that has considerably lower surface energy than the other components of the composition (which particular component is further present in a greater than negligible concentration) will exhibit a surface characterized by the properties of that lower surface . energy component.
• the surface energy of each component in the backsize coating should be similar, i.e., within 10 percent of each other. For example, if the surface energy of the LAB is acceptable for release characteristics, but is also more than 10 percent lower than the surface energy of the ink anchoring resin, printing on the surface of the backsize coating will be difficult.
• the surface energy of the ink anchoring resin is acceptable for ink acceptance, but is also more than 10 percent lower than the surface energy of the LAB, the backsize coating will not provide the release characteristics required for easy unwind. It has been discovered that measurement of the surface free energy of each of these components individually in cast film form, by utilizing a contact angle technique according to the test method described hereafter allows for this critical selection. When the surface free energy of the ink anchoring resin and the primer are within ten percent (either above or below) of the surface free energy of the LAB, it has been discovered that the unique balance of ink anchoring properties and low unwind release force is achieved, and thus the tape formed therefrom is directly printable.
• Samples are prepared by separately coating from solution the LAB, ink anchor resin and primer onto a smooth flexible backing with a conventional adhesive roll coater. Samples of the coated film are then cut into one-half inch (12.7 mm) by two and one-half inch (63.5 mm) rectangular sheets for placement in the Gaertner Contact Angle Goniometer, commercially available from Gaertner Scientific Corp.
• YLG is the surface energy of the liquid-gas interface
• YEG is the polar component of the surface energy of the liquid-gas interface
• yeG is the dispersion component of the surface energy of the liquid-gas interface
• ys is the polar component of the surface energy of the sample coating
• Y s is the dispersion component of the surface energy of the sample coating.
• an LAB disclosed in US-A-3,318,852 namely perfluorooctyl N-ethyl-sulfonamide methacrylate/acrylic acid/octadecyl acrylate has a surface free energy of 0.416 J/m 2
• cellulose acetate butyrates namely. CAB-381-0.1, CAB-531-1 and CAB-551-0.2, available from the Eastman Chemical Company, have surface free energies of 0.442, 0.434 and 0.438 J/m 2 respectively.
• chlorinated polyolefins namely CP-343-1, commercially available from Eastman Chemical Company, and "Hardlen” 16-LP, a chlorinated polypropylene, commercially available from Toyo Kasei Kogyo Company, which are known primers for tape film backings, display surface free energies of 0.441 and 0.440 J/m 2 , respectively.
• a copolyester resin namely Vitel PE-222, commercially available from Goodyear Chemical Company, has a value of 0.449 J/m 2 .
• the backsize should contain at least about 10 percent by weight of LAB, and preferably from about 30 to about 50 percent by weight. This insures reasonableness in terms of the unwind force of the PSA tape.
• the ink anchoring resin should be present at from about 5 to about 50 percent by weight, with from about 10 to about 30 percent being preferred, to optimize adhesion of the ink.
• the primer concentration is dependent on the backing utilized. With polypropylene and unplasticized polyvinyl chloride, it has been have found that from about 30 to about 60 percent by weight is preferred, while with polyethylene terephthalate, from about 15 to about 50 percent is preferred.
• the three components of the backsize coating solution are combined typically in solution form.
• the ternary mixture which results from this combination is adjusted to a solids percentage depending on the particular coating method employed.
• the principal solvents in the ternary mixture are toluene, xylene and methyl ethyl ketone.
• the ketone is utilized to solvate the ink anchoring resin while xylene and toluene can solvate the other components.
• the ternary mixture maintain a solvent composition wherein the toluene plus xylene weight ratio to methyl ethyl ketone is at least about 3:1, preferably about 5:1, but can be as high as about 8:1. In the following examples, this ratio is illustrated as follows (T+X):MEK.
• the primer solution is charged to a mixing vessel followed by the resin solution in MEK, and after sufficient mixing, the LAB solution and additional solvent are added to complete the ternary blend.
• the ternary blend typically requires agitation prior to coating, in conventional fashion.
• the ternary backsize solutions of the invention are coated onto the backside of a film which will become the tape backing prior to the coating of a PSA to the faceside thereof.
• a conventional rotogravure roll coater can be used, which accurately meters the quantity of coating solution applied to the backing, and insures a uniform and continuous coating application.
• a gravure roller consisting of a 200 line pyramidally knurled or a ruling mill or quadrangular cell roll was utilized and the coatings were applied at a machine speed of 20 yards/minute using solutions ranging in solids content from a low of 2.5 percent to a high of 21.8 percent. The coatings were then dried in an oven at 190°F (127.8°C) for 1.5 minutes prior to winding the coated film in roll form.
• the film backings utilized were either corona treated biaxially oriented polypropylene (BOPP), untreated polyethylene terephthalate (PET), or unplasticized polyvinyl chloride (UPVC). Film thicknesses ranged from 1 to 2 mils (0.0254 to 0.0508 mm).
• the faceside of each film was then coated with a PSA, a conventional block copolymer system similar to those described in US-A-3,239,478.
• the PSA was coated at a rate resulting in coating weights of 17 to 34 grams per meter 2.
• the completed PSA tape was in the form of a 12 inch (304.8 mm) wide roll which was slit to rolls of 2 inch (50.8 mm) width and 60 yard (54.86 m) length for evaluation and testing.
• the ink utilized in the test procedure was "Flexotuf" Purple F82300 or Black F82296, available from the Inmont Corporation. Printing was carried out at a machine speed of 20 yards (18.29 m)/minute.
• the printed indicia used in the test procedure covered 70 percent of the area of the tape backside.
• the tape was dried inline at ambient temperature about 10 seconds before it was rewound in roll form for storage. The thus printed rolls were then stored for one week at 75°F (23.9°C) before removed for testing.
• the rolls of tape were unwound by hand at a rate consistent with normal tape application procedures.
• the quantity of ink removed was determined subjectively by visual observation, and tapes exhibiting no more than about 5 percent ink removal by this test were considered acceptable.
• Unwind forces are measured as the tape is unwound from the backsize-coated roll prior to printing.
• the adhesion test is performed by unwinding a roll of tape coated in accordance with my invention and applying a length of the tape to a polished steel surface followed by removal therefrom.
• ODA:AA is an octadecyl acrylate:acrylic acid copolymer
• FC:AA:ODA is a perfluorooctyl N-ethyl sulfonamido methacrylate:acrylic acid:octadecyl acrylate polymer
• VOC is a polyvinyl N-octadecyl carbamate.
• CAB materials are cellulose acetate butyrates from Eastman Chemical
• the "CAP” material is cellulose acetate propionate from Eastman Chemical
• NC-RS-5-6 is cellulose nitrate from Hercules, Inc.
• CP 343-1 is a chlorinated polyolefin from Eastman Chemical
• Vitel PE-222 is a copolyester from Goodyear Chemical.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Adhesive Tapes (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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• 1985
  • 1985-02-06 CA CA000473654A patent/CA1244981A/en not_active Expired
  • 1985-02-08 ZA ZA85990A patent/ZA85990B/xx unknown
  • 1985-02-12 NZ NZ211100A patent/NZ211100A/xx unknown
  • 1985-02-12 AU AU38628/85A patent/AU575119B2/en not_active Ceased
  • 1985-02-25 BR BR8500829A patent/BR8500829A/pt not_active IP Right Cessation
  • 1985-02-25 MX MX204424A patent/MX166572B/es unknown
  • 1985-02-27 PH PH31917A patent/PH21910A/en unknown
  • 1985-02-27 DK DK089885A patent/DK164744C/da not_active IP Right Cessation
  • 1985-02-28 JP JP60037751A patent/JPH07108965B2/ja not_active Expired - Lifetime
  • 1985-02-28 EP EP85301377A patent/EP0158428B1/en not_active Expired
  • 1985-02-28 AT AT85301377T patent/ATE36867T1/de not_active IP Right Cessation
  • 1985-02-28 DE DE8585301377T patent/DE3564698D1/de not_active Expired
  • 1985-03-01 AR AR85299653A patent/AR245950A1/es active
  • 1985-03-01 NO NO850839A patent/NO169722C/no unknown
  • 1985-03-02 KR KR1019850001316A patent/KR940001524B1/ko not_active Expired - Fee Related

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